LM4040CEM3X-5.0/ELDB2169

Overview

The LM4040CEM3X-5.0 is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable DC voltage levels. It operates within an industrial temperature range of -40°C to +85°C and delivers a nominal output voltage of 5V with an initial accuracy of 0.5%. The device features a maximum shunt current of 15 mA and a temperature coefficient of 150 ppm/°C. Packaged in a compact SOT-23 surface-mount case with a height of 0.93 mm, it supports cut tape, reel, and MouseReel packaging formats.

Feature Summary

• Provides precise micropower shunt voltage regulation suitable for sensitive circuitry
• Operates reliably across the full industrial temperature range from -40°C to +85°C
• Utilizes a compact SOT-23 surface-mount package for space-constrained designs

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Microcontroller power supply monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Ensure ordering suffixes match specific packaging requirements such as cut tape or reel configurations. Validate that the part number corresponds to the exact voltage and accuracy specifications required for the design.

Selection Notes

Select this component when a 5V reference with 0.5% initial accuracy is required in a small footprint. Consider the 150 ppm/°C temperature coefficient for thermal stability needs. Evaluate the SOT-23 package dimensions against board space constraints. Compare performance against other series members if higher precision or different voltage outputs are needed.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references from Texas Instruments. The family offers various fixed voltage options and accuracy grades. The 'CEM3' designation indicates the specific accuracy grade and SOT-23 package type. The 'X' suffix typically denotes reel packaging configuration.